.content {
  display: flex;
  flex-wrap: nowrap;

  .list {
    width: 550px;
  }

  .control {
    display: flex;
    align-items: center;

    .buttons {
      display: flex;
      flex-direction: column;
    }
  }

  .viewport {
    height: 240px;
    width: 550px;
  }
}
